EP0071734A2 - Mécanisme de mise à feu électrique pour dispositif de lancement - Google Patents

Mécanisme de mise à feu électrique pour dispositif de lancement Download PDF

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Publication number
EP0071734A2
EP0071734A2 EP82105611A EP82105611A EP0071734A2 EP 0071734 A2 EP0071734 A2 EP 0071734A2 EP 82105611 A EP82105611 A EP 82105611A EP 82105611 A EP82105611 A EP 82105611A EP 0071734 A2 EP0071734 A2 EP 0071734A2
Authority
EP
European Patent Office
Prior art keywords
firing
switching element
switching
electronic switch
button
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP82105611A
Other languages
German (de)
English (en)
Other versions
EP0071734B1 (fr
EP0071734A3 (en
Inventor
Günther Ing. grad. Hesse
Günter Ing. grad. Junkert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wegmann and Co GmbH
Original Assignee
Wegmann and Co GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wegmann and Co GmbH filed Critical Wegmann and Co GmbH
Publication of EP0071734A2 publication Critical patent/EP0071734A2/fr
Publication of EP0071734A3 publication Critical patent/EP0071734A3/de
Application granted granted Critical
Publication of EP0071734B1 publication Critical patent/EP0071734B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/001—Functional circuits, e.g. logic, sequencing, interlocking circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
    • F41A19/58—Electric firing mechanisms

Definitions

  • the invention relates to an electrical firing device for weapon systems with firing logic that generates the firing signal, which can be controlled from at least one firing button and the output of which is connected to the control input of a controllable power switching element via which an ignition device can be connected to an electrical supply circuit.
  • the delay time of the relay is not constant as it depends on the operating voltage and ambient temperature and is up to 50 ms in older systems.
  • a shortening of the above-mentioned dead time below a certain value cannot be achieved due to the mechanical inertia of the relay and the relay inductance. This has the consequence that does not coincide, for example, at the timing of the stabilized weapon systems intend to fire, the optical line of sight p oint is in the in coincidence with the target with the time of actual firing. This effect definitely affects the result of the hit.
  • the object underlying the invention was to provide a firing device of the type mentioned, in which the dead time between the actuation of the firing button and the flow of the firing pulse current is reduced to such an extent that it is negligible even with stabilized weapon systems, but which, on the other hand, meets all safety requirements regarding an uncontrolled firing is sufficient.
  • an electronic switch serves as the controllable power switching element and a second controllable switching element is arranged between the electronic switch and the ignition device and can be controlled via a safety circuit which has a switching device in whose one switching position the second switching element opened and in the other switching position, the second switching element is closed.
  • the dead time of the electrical firing circuit is reduced to a value in the range of microseconds.
  • the switching time is independent of the existing ambient conditions and the influences of the voltage supply system. The time of the actual firing of the shot thus moves a considerable amount closer to the time of the firing button actuation.
  • Another advantage of the solution according to the invention is that the considerable mechanical wear on a power relay is eliminated.
  • the control of the electronic switch via a safety circuit which can be done in such a way that the path between the supply circuit and the ignition device is only released for a short time, ensures that even if the electronic switch is defective, the shot is broken at the wrong time. Since the second controllable switching element itself does not have to switch the high current pulse, but only has to transmit it, the requirements for the properties of this second switching element are less stringent than for the power switching element.
  • a thyristor or a power transistor or a combination of transistors can be used as the power switching element.
  • a relay can serve as the second controllable switching element (claim 3), but an electronic switch can also be used at this point, which is justifiable at this point, taking into account the safety regulations, since a simultaneous and Similar defects on the two electronic switches arranged in the same branch are very unlikely to occur and electronic switches have a longer service life with regard to the number of switching operations.
  • a particularly advantageous embodiment of the firing device according to the invention is the subject of claim 2. This ensures that the second switching element is generally open and this state is immediately restored shortly after the firing signal has been given, regardless of whether the shot actually broke or whether a There is a defect.
  • a fire logic 2 can be connected to the supply voltage 5 via a fire button 1.
  • the button signal flows into the firing logic 2.
  • This sends a firing signal via an amplifying transistor Tr3 and a Z diode to the control input 3a of an electronic switch, which is denoted by 3 in FIG. 1 and consists of two in the selected exemplary embodiment Transistors Tr1 and Tr2 in Darlington circuit.
  • a thyristor can also be used as the electronic switch 3 at this point, for example.
  • the supply voltage applied to the electronic switch 3 from the voltage source 5 is switched through when the electronic switch 3 is switched on and reaches the ignition device 4 via the resistors R1 and R2 when the relay contact a1 of a relay A is closed.
  • Relay A belongs to a safety circuit that can be operated from two buttons 6 and 7.
  • the state "ready for fire” is set by pressing the button 6 and the state "safe” by the button 7.
  • a current flows through the relay A, which pulls it in, whereupon it is held via a self-holding circuit consisting of the closed button 7, the relay contact a2 and a diode D2 which protects against incorrect polarity.
  • the diode D1 is used to reduce the fall time of relay A.
  • the safety circuit also contains a time switching device 8 which, after a predetermined time interval has elapsed after the firing pulse has been applied to the electronic switch 3, opens the latching circuit of relay A via a control transistor Tr4 and thus automatically restores the "safe" state with contact a1 open.
  • This restoration of the "safe” state also takes place if, for example as a result of a defect, the voltage at the output of the electronic switch 3 is maintained after the firing signal is emitted as a result of a defect. This ensures the highest level of security.
  • Resistors R1 and R2 limit the current to the maximum permissible value for electronic switch 3.
  • FIG. 2 The embodiment of a firing device shown in FIG. 2 corresponds in principle to the embodiment according to FIG. 1. For this reason, the same switching elements are provided with the same reference numerals.
  • the fire logic 2 can be connected to the voltage supply 5 via the fire button 1.
  • the firing button 1 When the firing button 1 is actuated, the firing signal 2 passes from the firing logic 2 to the control input 3a of the electronic switch 3 via the transistor Tr3 and the Zener diode.
  • switching through the firing signal to the ignition device 4 is only possible if a second electronic switch 9 is transparent is controlled.
  • This second electronic switch 9 also consists of two transistors Tr5 and Tr6. An opening or closing signal can be fed to its control input 9a, which is either emitted by the two buttons 6 and 7 for the "ready to fire" or "safe” states or by the timer 8.
  • the "ready to fire” state is established by briefly pressing the button 6.
  • the triggered pulse is sent via a NAND gate N1 to the set input 10a of a bistable multivibrator 10, the output 10c of which is connected via a control transistor Tr 7 to the control input 9a of the electronic switch 9 connected is. If the bistable flip-flop 10 is set, it controls the second electronic switch 9 so that a firing signal coming from the first electronic switch 3 can reach the ignition device 4 in this switching state.
  • a reset signal likewise arrives at the bistable flip-flop 10 after a predetermined period of time from the time switching device 8 via the NAND gate N2, as a result of which the "safe" state is also restored.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Relay Circuits (AREA)
  • Electronic Switches (AREA)
EP82105611A 1981-08-11 1982-06-25 Mécanisme de mise à feu électrique pour dispositif de lancement Expired EP0071734B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3131715 1981-08-11
DE19813131715 DE3131715A1 (de) 1981-08-11 1981-08-11 Elektrische abfeuervorrichtung fuer waffensysteme

Publications (3)

Publication Number Publication Date
EP0071734A2 true EP0071734A2 (fr) 1983-02-16
EP0071734A3 EP0071734A3 (en) 1984-03-28
EP0071734B1 EP0071734B1 (fr) 1986-10-22

Family

ID=6139080

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82105611A Expired EP0071734B1 (fr) 1981-08-11 1982-06-25 Mécanisme de mise à feu électrique pour dispositif de lancement

Country Status (2)

Country Link
EP (1) EP0071734B1 (fr)
DE (2) DE3131715A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3822255A1 (de) * 1988-07-01 1990-01-04 Wegmann & Co Wurfsystem fuer wurfkoerper, wie nebelkerzen und dergleichen
EP0356260A3 (fr) * 1988-08-26 1991-08-21 MacMillan, Stephen Circuit de commande
EP1333238A3 (fr) * 2002-02-02 2005-06-15 Rheinmetall Landsysteme GmbH Dispositif pour augmenter la sécurité d'une arme à feu automatique
US20130104147A1 (en) * 1995-05-05 2013-04-25 Apple Inc. Method and system for synchronous operation of linked command objects
CN110285707A (zh) * 2019-07-09 2019-09-27 南京华剑兵科工程技术有限公司 一种枪炮火箭击发点火控制器
CN111578779A (zh) * 2020-06-12 2020-08-25 孙宏宇 一种导弹发射火工品保险控制装置及方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016200147A1 (de) * 2016-01-08 2017-07-13 Thomas Hierl Laserbasierter Waffensimulator und Verfahren zum Herstellen einer Schussbereitschaft bei einem derartigen Waffensimulator

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3351016A (en) * 1965-12-10 1967-11-07 Universal Match Corp Explosive arming and firing system
FR1500085A (fr) * 1966-06-28 1967-11-03 Détente pour arme à feu et les armes à feu munies de cette détene
US3613282A (en) * 1969-09-15 1971-10-19 Olin Corp Electrical ignition shotgun for firing caseless ammunition
US3662685A (en) * 1970-03-05 1972-05-16 Simpliway Products Co Firing means for a model rocket
DE2046098C3 (de) * 1970-09-18 1975-11-13 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltungsanordnung zum Zünden der Zündkapseln eines Raketenstartgerätes
DE2703803C2 (de) * 1977-01-29 1987-02-12 Wegmann & Co, 3500 Kassel Schaltungsanordnung zur Sicherung von elektrisch betätigten Waffensystemen
US4205589A (en) * 1977-10-14 1980-06-03 Engler Richard D Weapon control and firing system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3822255A1 (de) * 1988-07-01 1990-01-04 Wegmann & Co Wurfsystem fuer wurfkoerper, wie nebelkerzen und dergleichen
EP0356260A3 (fr) * 1988-08-26 1991-08-21 MacMillan, Stephen Circuit de commande
US20130104147A1 (en) * 1995-05-05 2013-04-25 Apple Inc. Method and system for synchronous operation of linked command objects
EP1333238A3 (fr) * 2002-02-02 2005-06-15 Rheinmetall Landsysteme GmbH Dispositif pour augmenter la sécurité d'une arme à feu automatique
CN110285707A (zh) * 2019-07-09 2019-09-27 南京华剑兵科工程技术有限公司 一种枪炮火箭击发点火控制器
CN111578779A (zh) * 2020-06-12 2020-08-25 孙宏宇 一种导弹发射火工品保险控制装置及方法

Also Published As

Publication number Publication date
DE3273906D1 (en) 1986-11-27
DE3131715A1 (de) 1983-03-03
EP0071734B1 (fr) 1986-10-22
EP0071734A3 (en) 1984-03-28

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